61results about How to "Strong focus" patented technology

The present invention relates to a laser device comprising an array of several large area VCSELs (101) and one or several optics (201, 202) designed and arranged to image the active layers of the VCSELs (101) of said army to a working plane (501) such that the laser radiation emitted by the active layers of all VCSELs (101) or of subgroups of VCSELs (101) of the array superimposes in the working plane (501). The proposed laser device allows the generation of a desired intensity distribution in the working plane without the need of an optics specially designed for this intensity distribution or beam profile.

The invention relates to a measuring device which permits a very simple positioning of cells and vesicles respective of cell membranes on planar carriers. The invention also relates to a corresponding highly efficient method for the positioning and electric characterization of such membranes with a consistently high signal-to-noise ratio. In addition, statements concerning interactions of substances with lipid membranes respective of materials bonded thereon or therein respective of signal transduction mechanisms connected thereto are possible.

The invention relates to an electromagnetic-signal-time-inversion-based fault point positioning method for a transmission line. On the basis of an electromagnetic time inversion principle, a single observation point is set at any terminal in a power distribution network and a fault high-frequency transient signal within a limited period of time is measured and recorded; and time inverted sequenceprocessing is carried out on the measured signal, the processed signal is injected into a power distribution network simulation calculation model at an observation point, norm values at different guess positions in the power distribution network are calculated, and a fault position is determined by searching for a maximum peak value and a maximum energy root value. According to the method different form the traditional traveling wave determining method and impedance method, a power distribution network with a complex topological structure can be covered by one observation point without being affected by the fault impedance; and the excellent anti-noise performance is realized. The electromagnetic-signal-time-inversion-based fault point positioning method has the great practical value in fault positioning of the transmission line.

The invention discloses an easily-happening landslide prediction method based on remote sensing technology. The easily-happening landslide prediction method comprises following steps of: obtaining remote sensing images, digital altitude data and geological data; constructing a three-dimensional remote sensing interpretation space scene; detailing interpretation regional landslide distribution characteristics; determining key impacting indicators of landslide growth; and carrying out remote image segmentation processing and establishing an easily-happening landslide prediction model. By use of the easily-happening landslide prediction method, prediction of hidden easily-happening landslides is achieved; the easily-happening landslide prediction method is strong in focusing ability, highly reliable, capable of providing more specific and scientific basis for engineering construction, operation maintenance, disaster prevention and reduction and the like, and capable of increasing the level of engineering operation safety and disaster prevention and reduction.

An apparatus for scheduling transmission resources to users served by a base station equipped with a plurality of antennas includes a predictor for predicting rate regions for one or more future time slots based on rate regions for one or more past time slots to obtain one or more predicted rate regions, and a processor for calculating the transmission resources for the users for a current time slot using scheduled transmission resources for the one or more past time slots, a rate region for the current time slot and the one or more predicted rate regions.

The invention discloses a femtosecond optical parameter amplifier. The femtosecond optical parameter amplifier is characterized in that birefringent crystals are inserted into stages of an optical parameter amplifier to separate signal light from idle light in time, and then the ultrashort time response of a pump laser pulse is utilized to selectively amplify only one path of laser, so that the pump light and the signal light in each stage of optical parameter amplification can work in the complete collinear condition, the spatial chirp is eliminated, and the conversion efficiency is improved. As shown in an experiment, the femtosecond optical parameter amplifier has the advantages of high conversion efficiency, no spatial chirp and strong focusing capacity.

The invention provides a pre-embedded and prefabricated magnetic attraction end guiding type building crack repairing device and a method based on magnetic force. The device comprises a steel bar pre-embedded in a reinforced concrete beam body; the steel bar is wound with a tinned copper wire; the tinned copper wire penetrates through a reserved wire interface pre-formed in the reinforced concrete beam body; the tinned copper wire is connected with an electromagnetic induction device used for providing current; a guide hole is formed in the position, where a crack easily occurs, of the reinforced concrete beam body; and the guide hole is connected with a high-pressure jet grouting machine through a grouting pipe, and then magnetic mortar is injected into the crack. The magnetic mortar is injected into a required position under the guide adsorption of different magnetic attraction ends, so that the sufficient grouting effect is achieved, and the crack repairing and filling rate is increased. According to the pre-embedded and prefabricated magnetic attraction end guiding type building crack repairing device and the method based on the magnetic force, the needed materials are simple, the assembly cost is low, and the device has prefabrication performance, is fast to operate, and is high in crack repair guiding effect and long in duration time.

The invention provides a Beidou vehicle monitoring management system which can timely and accurately inform related alarm information to a vehicle around the monitored vehicle. The system comprises a vehicle monitoring management server (1) and at least one vehicle-mounted terminal (2) arranged on the vehicle; the vehicle monitoring management server (1) and the vehicle-mounted terminal (2) are communicated via a Beidou satellite (3); the vehicle-mounted terminal (2) comprises a Beidou vehicle-mounted terminal host computer (201), a vehicle driving parameter acquisition module (202), a camera (203), a power supply (204) and a cabinet (205). The Beidou vehicle monitoring management system is characterized in that the vehicle-mounted terminal (2) also comprises at least one projection device (206) used for projecting vehicle alarm information to the surrounding road surface of the vehicle; and the projection device (206) is electrically connected with the Beidou vehicle-mounted terminal host computer (201) and the power supply (204) provides power for the projection device (206).

The invention discloses an acoustic resonance focusing lens and a design method thereof, which belong to the field of physical acoustics. The acoustic resonance focusing lens has an artificial periodic acoustic structure composed of a base body, a plurality of local resonance-type scatterer units and a base, wherein the base body material can be air and water, each scatterer unit is in a cruciformshape, cells in the resonance focusing lens are arranged periodically in the form of a square lattice, the peripheral contour of the lens main body presents a cuboid, and the main body is arranged onthe lens base. The basic principle of a photonic crystal local resonance cavity and acoustic wave negative refraction is used to design the acoustic resonance focusing lens, and compared with the existing acoustic focusing lens, the acoustic resonance focusing lens has a simple structure, is thinner in thickness and can achieve good acoustic wave focusing effects for planar waves and spherical waves in various media.

The invention provides an ion acceleration tube, which is used for a static electricity high-voltage ion accelerator. The ion acceleration tube adopts modularized structural design; the acceleration voltage of each ion acceleration tube module is about 250kV; a certain number of ion acceleration modules are connected in series; the required ultra-high acceleration voltage can be obtained. The ion acceleration tube module comprises a strong focusing acceleration region and a space charge neutralization region, and is used for eliminating the self space charge effect of ion beams; the accelerated transmission of ion beams exceeding 1mA can be realized. Meanwhile, the ion acceleration tube module is also provided with a secondary electronic strong inhibition structure; when an ultra-high voltage acceleration system exceeding 5MV end voltage is formed, the occurrence of full voltage effect can be effectively prevented. The ion acceleration tube provided by the invention has the advantage that the ion beams with the end voltage exceeding 5MV and the beam current intensity exceeding 1mA can be obtained. The ion acceleration tube is suitable to be applied in the fields of ion injection, ion beam tumor treatment, nucleopore membrane production, neutron radiography and the like.

The invention relates to an imaging velocity analysis method of a seismic scattering P-S converted wave, comprising the following steps of: firstly, reading the seismic data of a seismic scattering P-P wave into a two-dimensional array F, and computing the position and the coordinate of a scattering point; secondly, arbitrarily selecting a velocity vPk to overlap or correlate scattering amplitudes of shot-geophone distances and weigh to sum the energy of the same scattering point so as to obtain a corresponding average amplitude; thirdly, making a seismic scattering P-P wave velocity spectrum; fourthly, reading the seismic data of the seismic scattering P-S converted wave into a two-dimensional array E, and computing the position and the coordinate of the scattering point; fifthly, taking an acquired seismic scattering P wave velocity to overlap or correlate the scattering amplitudes of the shot-geophone distances and weigh to sum the energy of the same scattering point so as to obtain the corresponding average amplitude; and sixthly, making a seismic scattering P-S converted wave velocity spectrum. The invention increases the overlapping times of a velocity analysis technology and enables the focusing capability of effective scattered wave energy to be higher.

A combined scanning and focusing magnet for an ion implantation system is provided. The combined scanning and focusing magnet has a yoke having a high magnetic permeability. The yoke defines a hole configured to pass an ion beam therethrough. One or more scanner coils operably are coupled to the yoke and configured to generate a time-varying predominantly dipole magnetic field when electrically coupled to a power supply. One or more focusing coils are operably coupled to the yoke and configured to generate a predominantly multipole magnetic field, wherein the predominantly multipole magnetic field is one of static or time-varying.

The present invention provides a set of induction accelerating cell for controlling acceleration of a charged particle beam and an induction accelerating device for controlling generation timing of an induced voltage applied by the induction accelerating cell in a synchrotron. The induction accelerating device in a synchrotron includes: an induction accelerating cell that applies an induced voltage; a switching power supply that supplies a pulse voltage to the induction accelerating cell via a transmission line and drives said induction accelerating cell; a DC power supply that supplies electric power to the switching power supply; and an intelligent control device including a pattern generator that generates a gate signal pattern for controlling on / off the switching power supply, and a digital signal processing device that controls on / off a gate master signal that becomes the basis of the gate signal pattern.

The invention discloses a construction process for a sand painting wall material, and a sand painting emulsion and a sand painting paint for the construction process. The construction process comprises the following steps: wall surface preatreatment, preparation of the sand painting emulsion, preparation of the sand painting paint, wall surface bottoming treatment, curing and aging treatment and sand painting texture shape treatment, and also comprises a texture shape forming step before the sand painting paint texture shape treatment. The sand painting wall material formed by the construction process is free of cracks, and a formed surface is fine, smooth and difficult to crack; moreover, a formed pattern has good texture effects, and decoration effects are greatly enhanced; moreover, the wall material cannot be faded for 15 years, and the real value of the sand painting wall material is effectively utilized.

The invention relates to a laser system, a working method and a projection system. The laser system comprises a laser source, a collimation system and a self-focusing system, wherein the laser source transmits a monochromatic laser beam; the collimation system collimates the laser beam transmitted by the laser source; and the self-focusing system focuses the laser beam which is emergent from the collimation system. The invention adopts the laser source as the light source of the projection system, and the laser source has long service life, small volume, low power consumption, wide colour gamut, high brightness, environmental protection, easy mass production and low cost. In addition, the self-focusing system is adopted in the laser system to focus the laser beam, the focusing capability is stronger, light spots are smaller, energy is more concentrated, and the laser efficiency is higher.

The invention relates to a part of an electrostatic accelerator, aims to solve the problem of accelerated particle loss caused by an electronic load suppression measure of an accelerating tube of the conventional electrostatic accelerator, simplify the accelerating structure and reduce the cost of the accelerating structure, and provides an accelerating electrode for an electrostatic accelerator. The accelerating electrode for the electrostatic accelerator consists of a series of electrode plates, wherein the series of electrode plates comprise conical surface electrode plates with conical surface structures; electrode holes are formed in cone angles of the conical surface structures; the conical surface structures are circular conical surfaces, elliptical conical surfaces or pyramidal surfaces. According to the accelerating electrode for the electrostatic accelerator, focusing force can be provided for forwards-accelerated beam current, and defocusing force can be provided for backwards-accelerated beam current, so that electronic loads and full-voltage effects are suppressed, and meanwhile, accelerated particle loss is avoided; in addition, the accelerating electrode is simpler in accelerating structure, the production or modification cost of the accelerating structure is reduced, and adverse impact on the electrostatic accelerator is avoided.

The invention relates to a hollow metal cone guiding and laser focusing device which comprises a laser for transmitting a laser beam and is characterized in that a light-gathering element and a hollow metal cone are sequentially arranged in the direction of the laser beam transmitted by the laser, the distance between the laser and the light-gathering element is equal to the focal length of the light-gathering element, and the distance between an incident port which is a large-diameter port of the hollow metal cone and the light-gathering element is equal to the focal length of the light-gathering element. Compared with the prior art, the device has the advantages of large focusing strength, small spot size, high damage threshold and wide range of applications.

The invention discloses a manufacturing method of an unequal height metal grating. The method comprises the following steps of making a seed layer on a substrate; coating photoresist on the seed layerto make first grating patterns arranged at equal intervals; forming a first metal gate line by electroplating; coating the photoresist on the first grating patterns to make second grating patterns arranged at equal intervals, wherein a grating constant of the second grating patterns is greater than the grating constant of the first grating patterns; forming a second metal gate line through electroplating; and removing the photoresist and etching to remove the uncovered seed layer. The invention also discloses the unequal height metal grating, a two-period metal grating structure is formed, alot of optimized parameters are possessed so that adjustment is more flexible, and better optical performance is achieved.

The invention relates to the technical field of electric glue extrusion guns, and discloses a multifunctional electric glue extrusion gun, which comprises a gun body. The components include a round box, the inner side of the round box is rotatably connected with a track disc, the front side of the track disc is rotatably connected with a sliding block, the right side of the gun body is fixedly connected with a moving component, and the inner side of the gun barrel is provided with a main component. The multi-functional electric glue extrusion gun slides on the sliding rheostat by manually moving the shifter, thereby changing the internal resistance of the sliding rheostat. Since the sliding rheostat is electrically connected to the first coil, the first The current of the coil, and then change the strength of the magnetic field generated by the first coil to attract the first magnetic block, so that the track disc can be driven to rotate back and forth, thereby driving the sliding block to slide, and then changing the size of the glue column. The size of the gel column can be adjusted freely.

The invention discloses an optical device of a flexible implantable nerve photoelectrode, which is arranged on a flexible polymer substrate and includes: an input grating, a waveguide and an output grating, the input grating is a parallel grating for coupling incident light, and the input of the waveguide The end of the waveguide is coupled to the input grating, the output end of the waveguide is coupled to the output grating, and the output grating is a focusing grating, which is used to couple and focus light on the recording electrode to provide optical stimulation with single-cell resolution. The invention also discloses the design and preparation method of the optical device. The optical device of the flexible implantable neural photoelectrode provided by the present invention provides single-cell resolution optical stimulation and in-situ recording through the design of the waveguide and grating; the small size of the device can reduce implant damage, and it has low loss and high Coupling and strong focusing; its high integration is conducive to the realization of multi-channel, high-density nerve stimulation and recording; the use of flexible polymer substrates can reduce the formation of nerve scars and achieve long-term stable work in vivo.

The present invention discloses a field local enhancement device based on hybid plasmonic waveguides. The device comprises three layers of structures consisting of a first layer of structure, a secondlayer of structure and a third layer of structure which form a coaxial conical structure from inside to outside layer by layer, the three layers of structures are respectively medium with a high refractive index, medium with low refractive index and precious metal, when a radially polarized beam vertically enters the structures from the bottom end of a circular cone, the structures can effectively reduce the loss to allow more luminous energy to perform propagation towards the top end, the luminous energy is gathered at the top end and the peak of the circular cone has a high electric field enhancement effect so as to achieve higher focusing performances. The structures can be applied to an ultra-high density integration circuit to have very important application for achieving nanometer photon device design and integration, novel light source, communication fiber processing and micro-nano sensing detection.

The invention discloses an optical device of a flexible implantable neural photoelectrode. The optical device is arranged on a flexible polymer substrate and comprises an input grating, a waveguide and an output grating, wherein the input grating is a parallel grating and is used for coupling incident light; the input end of the waveguide is coupled with the input grating; the output end of the waveguide is coupled with the output grating; and the output grating is a focusing grating and is used for optically coupling and focusing light to irradiate above a recording electrode and providing photostimulation with single cell resolution. The invention also discloses a design and preparation method of the optical device. The optical device of the flexible implantable neural photoelectrode, provided by the invention, has the advantages that photostimulation and in-situ recording with single cell resolution are provided through design of the waveguide and the gratings; the device is small in size, so that implantation damage can be reduced, and the device is low in loss, high in coupling and strong in focusing; the high integration level of the device is beneficial to realizing multichannel and high-density nerve stimulation and recording; and by adopting the flexible polymer substrate, formation of nerve scars can be reduced, and long-term in-vivo stable work is realized.

The invention provides a preparation method of a metal interconnection structure. The method comprises that a lower dielectric layer with an interconnection line is provided; an etching terminal detection layer rich in nitrogen, a porous interlayer dielectric layer, a low K buffer layer and a metal hard mask layer are formed on the lower dielectric layer successively; a photoresist layer with an open-mounted pattern is formed on the metal hard mask layer, and the cross sectional width of an opening is greater than that of the interconnection line; the metal hard mask layer and the low K bufferlayer are etched to form an opening structure; femto second laser etching is carried out on the porous interlayer dielectric layer by taking the opening structure as a mask; during detection, when the etching terminal detection layer rich in nitrogen is reached by etching, third etching is carried out, and a nitrogen reduction gas is input in the etching process; after that the interconnection line in the lower portion is exposed, nitrogen is input continuously to over etching the lower dielectric layer further and form an opening structure; and a barrier layer, a crystal seed layer and a metal layer are formed successively in the opening structure, and the metal interconnection structure is formed.

A lighting device for vehicles with a light source unit, having a plurality of first light sources and second light sources, an optical unit for generating at least two different light distributions containing a light panel and a diffusing structure. The first light source and the second light source are arranged at a distance from the light panel and / or the diffusing structure. The light panel and / or the diffusing structure are provided a diaphragm with apertures for the passage of light emitted by the first light source and / or the second light source, wherein a contour of the openings predefines a light signature for the light distributions. The second light source is designed as an additional light source, which is associated with an additional optical system for focusing the light emitted by the additional light source in the direction of a delimited region of the diaphragm.

The invention relates to an electromagnetic-signal-time-inversion-based fault point positioning method for a transmission line. On the basis of an electromagnetic time inversion principle, a single observation point is set at any terminal in a power distribution network and a fault high-frequency transient signal within a limited period of time is measured and recorded; and time inverted sequenceprocessing is carried out on the measured signal, the processed signal is injected into a power distribution network simulation calculation model at an observation point, norm values at different guess positions in the power distribution network are calculated, and a fault position is determined by searching for a maximum peak value and a maximum energy root value. According to the method different form the traditional traveling wave determining method and impedance method, a power distribution network with a complex topological structure can be covered by one observation point without being affected by the fault impedance; and the excellent anti-noise performance is realized. The electromagnetic-signal-time-inversion-based fault point positioning method has the great practical value in fault positioning of the transmission line.

The invention provides an electromagnetic lens adopting a miniaturized frequency selective surface, which comprises a plurality of antenna units which are arranged into a circle in a matrix form, and a central position antenna unit and an edge position antenna unit are delayed by a wavelength. Each antenna unit sequentially comprises a first unit patch layer, a first unit dielectric layer, a first unit grid layer, a second unit dielectric layer, a second unit patch layer, a third unit dielectric layer, a second unit grid layer, a fourth unit dielectric layer and a third unit patch layer, and the first unit grid layer and the second unit grid layer are metal crosses, a square notch is hollowed out in the center, and four L-shaped metal strips are arranged at the four corners of the cross. The X wave band can be covered by changing the grid structure and increasing the bandwidth.

A combined scanning and focusing magnet for an ion implantation system is provided. The combined scanning and focusing magnet has a yoke having a high magnetic permeability. The yoke defines a hole configured to pass an ion beam therethrough. One or more scanner coils operably are coupled to the yoke and configured to generate a time-varying predominantly dipole magnetic field when electrically coupled to a power supply. One or more focusing coils are operably coupled to the yoke and configured to generate a predominantly multipole magnetic field, wherein the predominantly multipole magnetic field is one of static or time-varying.

The invention relates to the boat manufacturing field, in particular to a method for manufacturing a boat. The method for manufacturing the boat includes the steps of rolled steel flattening, welding assembling, surface pre-cleaning, secondary rust removal, electroplating and protection layer covering, and the problem that the boat is easily corroded in water is solved; meanwhile, the boat is abrasion resistant and high in strength, and the service life is accordingly prolonged.